20301205 has 8 divisors (see below), whose sum is σ = 24420312. Its totient is φ = 16201728.

The previous prime is 20301181. The next prime is 20301209. The reversal of 20301205 is 50210302.

It can be written as a sum of positive squares in 4 ways, for example, as 311364 + 19989841 = 558^2 + 4471^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20301205 - 2¹¹ = 20299157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20301209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2524 + ... + 6853.

It is an arithmetic number, because the mean of its divisors is an integer number (3052539).

Almost surely, 2^20301205 is an apocalyptic number.

It is an amenable number.

20301205 is a deficient number, since it is larger than the sum of its proper divisors (4119107).

20301205 is an equidigital number, since it uses as much as digits as its factorization.

20301205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9815.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 20301205 is about 4505.6858523426. The cubic root of 20301205 is about 272.7976379213.

Adding to 20301205 its reverse (50210302), we get a palindrome (70511507).

The spelling of 20301205 in words is "twenty million, three hundred one thousand, two hundred five".